Manager, Cost Accounting

Long Wall Company was created in 2024 to accelerate missile defense technology for the U.S. and our allies. We specialize in ballistic missile defense and are developing Cyclops, a low-cost, mass-producible interceptor. We also produce containerized launchers and offer low-cost targets for threat replication. The future of global security depends on defensive technology that redefines cost, magazine depth, and distribution to deter and defend against evolving threats. Join us.

WHAT WE LOOK FOR Mission-Driven Problem Solvers– The problems in missile defense demand ingenuity. We want engineers who approach challenges with curiosity, embrace failure as a learning opportunity, and stay focused on delivering the best solution for the mission. Total Ownership– We seek engineers who take full responsibility for delivering flight-ready work while recognizing that no one succeeds alone. The best engineers make their teammates better, knowing that complementary skills create force multiplication and drive mission success.

Manager, Cost Accounting DESCRIPTION The Manager, Cost Accounting will own and lead the cost accounting and inventory accounting functions within the Accounting team. This role will be responsible for ensuring the accuracy and integrity of manufacturing costs and inventory balances, supporting the month-end close and budgeting processes, and providing financial insights to support operational and business decision-making. Reporting directly to the Controller, the Manager, Cost Accounting will work closely with the broader Finance and Accounting team and partner cross-functionally with Operations, Supply Chain, Engineering, and other teams throughout the organization. We are looking for someone with strong cost accounting and manufacturing experience who can both manage day-to-day accounting activities and help develop and scale our processes as the organization grows. The ideal candidate is highly analytical, comfortable working with detailed operational data, and able to translate complex cost information into meaningful financial insights. Experience within aerospace & defense, automotive, or another complex manufacturing environment is preferred.

Own all manufacturing cost accounting activities, including month-end close, inventory accounting, cost maintenance, labor and overhead absorption, and related account reconciliations

Develop and maintain effective cost accounting processes, policies, controls, and documentation to support accurate and timely financial reporting

Perform and communicate manufacturing cost and variance analyses, including purchase price, material usage, labor, overhead, work order, cost revaluation, and invoice-to-PO variances

Partner with Operations, Supply Chain, and Engineering to develop a strong understanding of manufacturing processes, inventory flows, cost drivers, and operational performance

Partner with Operations and Finance to evaluate labor and overhead rates, absorption, utilization, and other manufacturing cost drivers

Work closely with the inventory and operations teams to monitor and improve cycle count processes, physical inventory procedures, and overall inventory accuracy

Ensure the accuracy and integrity of cost and inventory information within the ERP system through detailed analysis and coordination with inventory, purchasing, receiving, production, and work order processes

Identify and lead improvements to cost accounting and ERP processes as the Company’s manufacturing operations and reporting requirements continue to scale

Partner with Engineering and Operations to support the accuracy of bills of material, routings, work orders, and other inputs impacting product costs

Collaborate with FP&A to identify key cost drivers and provide cost accounting data and analysis to support budgeting, forecasting, and business planning

Provide financial analysis and insights to support cost reduction initiatives, sourcing decisions, manufacturing efficiency, and other operational decision-making

Support the design and execution of internal controls over inventory and cost accounting

Support financial statement audits and other compliance activities related to inventory, manufacturing costs, and cost accounting

Support and develop members of the Accounting team involved in cost and inventory accounting activities

Bachelor’s degree in Accounting, Finance, or related field

5+ years of progressive experience in cost accounting, inventory accounting, or manufacturing accounting

Strong understanding of U.S. GAAP applicable to inventory and manufacturing cost accounting

Experience working with ERP systems and analyzing detailed transactional and operational data

Experience with physical inventories, cycle counts, inventory reserves, and inventory-related internal controls

Experience developing and maintaining labor and manufacturing overhead rates, allocation methodologies, and cost pools

Excellent written and verbal communication skills, with the ability to work effectively across Finance, Operations, Supply Chain, and Engineering

Experience within aerospace & defense, automotive, industrial manufacturing, or another complex manufacturing environment

Experience establishing or improving cost accounting processes in a growing or evolving manufacturing organization

Experience supporting budgeting, forecasting, and operational cost analysis

Experience implementing, enhancing, or scaling ERP cost accounting and inventory functionality

Experience managing or developing accounting team members

Advanced Microsoft Excel skills

CPA, CMA, or other relevant professional certification is a plus

Ability to sit or stand for extended periods of time

Ability to use a computer to complete assignments

Ability to communicate with individuals and groups in person, by phone, and via telepresence

While performing the duties of this job, the employee will typically work in an office environment

Ability to travel up to 25% of the time

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